Finding the Fourth Proportional to 96,428,601.72, 133,073,223.42 and 54,621,347.31

Step by Step Solution

1. Step 1: Write the proportion equation
   96,428,601.72 : 133,073,223.42 = 54,621,347.31 : x
2. Step 2: Convert to fraction form
   96,428,601.72/133,073,223.42 = 54,621,347.31/x
3. Step 3: Cross multiply
   96,428,601.72x = 133,073,223.42 × 54,621,347.31
4. Step 4: Simplify right side
   96,428,601.72x = 7,268,638,754,085,046
5. Step 5: Solve for x
   x = 7,268,638,754,085,046/96,428,601.72
6. Step 6: Final answer
   x = 75,378,452.29